20µA,
1
⁄
8
-Unit-Load, Slew-Rate-Limited
RS-485 Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
MAX1482,
RE = 0V or V
CC
MAX1483,
RE = 0V or V
CC
DE = 0V, RE = V
CC
DI = high or low, -7V
≤
V
O
≤
12V (Note 2)
0V
≤
V
O
≤
V
CC
35
±7
CONDITIONS
DE = V
CC
DE = 0V
DE = V
CC
DE = 0V
MIN
TYP
25
20
55
20
0.1
MAX
45
35
85
35
10
250
±95
µA
mA
mA
µA
UNITS
MAX1482/MAX1483
No-Load Supply Current
I
CC
Supply Current in Shutdown
Driver Short-Circuit Current
Receiver Short-Circuit Current
I
SHDN
I
OSD
I
OSR
SWITCHING CHARACTERISTICS
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Driver Input to Output
Driver Output Skew to Output
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Receiver Input to Output
SYMBOL
t
PLH
t
PHL
t
SKEW
t
R
, t
F
t
ZH
t
ZL
t
LZ
t
HZ
t
PLH
, t
PHL
t
SKD
t
ZL
t
ZH
t
LZ
t
HZ
f
MAX
t
SHDN
(Note 3)
CONDITIONS
Figures 3 and 5, R
DIFF
= 54Ω,
C
L1
= C
L2
= 100pF
Figures 3 and 5, R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
Figures 3 and 5, R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
Figures 4 and 6, C
L
= 100pF, S2 closed
Figures 4 and 6, C
L
= 100pF, S1 closed
Figures 4 and 6, C
L
= 15pF, S1 closed
Figures 4 and 6, C
L
= 15pF, S2 closed
Figures 3 and 7, R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
Figures 3 and 7, R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
Figures 2 and 8, C
RL
= 15pF, S1 closed
Figures 2 and 8, C
RL
= 15pF, S2 closed
Figures 2 and 8, C
RL
= 15pF, S1 closed
Figures 2 and 8, C
RL
= 15pF, S2 closed
250
50
200
0.25
0.2
0.1
0.3
0.3
0.25
160
90
90
90
90
600
2
2
3
3
MIN
TYP
MAX
2
2
800
2
2
2
3.0
3.0
2.25
UNITS
µs
ns
µs
µs
µs
µs
µs
µs
ns
ns
ns
ns
ns
kbps
ns
µs
µs
µs
µs
|
t
PLH
- t
PHL
|
Differential
Receiver Skew
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from Low
Receiver Disable Time from High
Maximum Data Rate
Time to Shutdown
Driver Enable from Shutdown to
t
ZH(SHDN)
Figures 4 and 6, C
L
= 100pF, S2 closed
Output High
Driver Enable from Shutdown to
t
ZL(SHDN)
Output Low
Figures 4 and 6, C
L
= 100pF, S1 closed
Receiver Enable from Shutdown
Figures 2 and 8, C
L
= 15pF, S2 closed,
t
ZH(SHDN)
to Output High
A - B = 2V
Receiver Enable from Shutdown
t
ZL(SHDN)
to Output Low
Figures 2 and 8, C
L
= 15pF, S1 closed,
B - A = 2V
Note 2:
Applies to peak current. See
Typical Operating Characteristics.
––
—
Note 3:
The MAX1482/MAX1483 are put into shutdown by bringing RE high and DE low. If the inputs are in this state for less
than 50ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts are
guaranteed to have entered shutdown. See
Low-Power Shutdown Mode
section.
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
